The OR 1.287 x 0.210" O-Ring is crafted from high-quality EPDM material, specifically the E750FM grade, ensuring excellent resistance to heat, ozone, and weathering. With a hardness rating of 75, this O-Ring is designed for reliable sealing in various applications, including automotive and industrial uses. Its precise dimensions guarantee a snug fit, preventing leaks and enhancing system efficiency. This O-Ring meets industry standards, making it a dependable choice for professionals seeking durability and performance.